ifup fails for static IP address. Is ifcfg wrong?
Robert Nichols
rnicholsNOSPAM at comcast.net
Mon Jul 3 22:32:42 UTC 2006
Art Edwards wrote:
> I just installed Fedora core 5. I have a static IP address. When the system
> boots it tells me that this IP address is already in use. It then defaults to
> dhcp. I have looked at the /sbin/ifcfg code, where the error arises, and I find
> the following:
>
> if ! arping -q -c 2 -w 3 -D -I $dev $ipaddr ; then
> echo "Error: some host already uses address $ipaddr on $dev." 1>&2
> exit 1
> fi
>
> When I issue the same command (without the -q switch) with eth0 substituted
> for $dev and my ipaddress substituted for $ipaddr, I receive no response.
> However, when I issue the same command with another ip address that I know is
> active, I receive an affirmative.
>
> I think that the code above is incorrect. Specifically, I think the ! (not) is
> wrong.
No, that code is correct. In a shell script, "if ! arping ..."
does not mean "if arping returns 0". It means "if the arping
command fails", and "arping -D" gives a failure (i.e., non-zero)
return code if it detects a reply.
I don't know why you're having a problem. My FC5 test box is
set up with a static IP address on its one and only ethernet
interface, and that is working fine for me.
[root at omega-3b ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0
# Intel Corporation 82801DB PRO/100 VM (LOM) Ethernet Controller
DEVICE=eth0
BOOTPROTO=static
BROADCAST=192.168.43.255
HWADDR=00:0B:CD:98:7A:48
IPADDR=192.168.43.50
NETMASK=255.255.255.0
NETWORK=192.168.43.0
ONBOOT=yes
[root at omega-3b ~]#
--
Bob Nichols Yes, "NOSPAM" is really part of my email address.
More information about the fedora-devel-list
mailing list